Due to the popularity of the FT8 digital mode there are now
thousands of hams worldwide using this mode on every HF
amateur band. Using the free program WSJT-X and monitoring
reception reports on the internet using PSKReporter.info
you can quickly see how well your antenna compares with
others that are receiving the same signals.

I built a 20M ground plane vertical @ 36' a few years ago but
rarely used it on 20 mostly due to overcrowding, using it
with a tuner on 12,15, and 17M instead. Few weeks ago I took a good
hard look at how it was receiving on 20 vs commercial and other
antennas using pskreporter.info and noticed that although
a hygain dx88 vertical decoded more transmitters, my antenna
was decoding more DX transmitters :O) and I now know
that if I can see DX on the waterfall, I can work them day
or night with this antenna.

For best S/N my FT1200 is set ATT -18 NB OFF AGC FAST
then use the RF gain to set WSJT-X receive at 30 db. Use next
highest attenuation if needed to attain 30 db. My audio
to the computer comes from the fixed level data jack on the
rear panel, simple hookup is to use a microphone in front of
the radio speaker or laptop mic. ATT -18 is ONLY 3 "S" units, NB and AGC
settings are to keep strong signals from causing distortions.

In a few minutes pskreporter will display the info it gets
automatically via the internet from your WSJT-X program. On a
busy afternoon on 20M a good antenna will show well over 100
transmitters in a 15 minute period, over 50 transmitters gets
the pink blob, click on the blob for additional info.

You can enter your setup for a particular FT8 frequency easily
in file\settings\frequencies. Write a book, they give you a
lot of space.

My station is always monitoring FT8, compare your antennas
to mine :O)